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All Patents in class 408/169
Patents 1 - 10 of 10
First set of recordsLast set of records
NumberDatePatenteeTitleType
48,548Jul. 04, 1865F. GleasonImproved Expanding Drilladjustable drill bits
79,276Jun. 23, 1868E. SullivanReamerreamers
122,243Dec. 26, 1871J. FlowerImprovement in Boring Bars for Facing the Ends of Cylindersboring bars
184,097Nov. 07, 1876J.W. MelvinScrew-Taptaps and dies
330,999Nov. 24, 1885R.C. NugentScrew Taptaps and dies
716,439Dec. 23, 1902J.N. LapointeReamerreamers
1,356,867Oct. 26, 1920V.R. KoontzCollapsible taptaps and dies
1,960,319May 29, 1934O. SeversonExpansion Reamerreamers
2,206,941Jul. 09, 1940S.A. CogsdillReamer reamers
3,730,636May 01, 1973S. MizoguchiBoring Headboring heads
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